Spoke-mitering machine.



0. (I. KETRING & E. D. POPE.

SPOKE MITERING MACHINE. APPLICATION FILED SEPT-18. I914- Patented 00's.26, 1915.

2 SHEETS-SHEET I.

Atto rn e ys COLUMBIA PLANOLIRAPH c0.. WASHINGTON, D. c.

0. C. KETRING & E. D. POPE.

SPOKE MITERING MACHINE. APPLICATION FILED SEPT. 18, I914.

Patented Oct. 26, 1915.

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2 SHEETSSHEET 2.

Witnesses Attorneys COLUMBIA PLANOGRAPH CO.,\VASHINGTON. m c

'pnrn' ea ners PATNT onto.

ORLANDO C. KETRING AND EDGAR D. POPE, OF PORTLAND, INDIANA.

SPOKE-METERING MACHINE.

Specification of Letters'Patent.

Patented Get. 26, 1915.

Application filed September 18, 1914. Serial No. 862,399.

To all whom, it may concern:

RING and EDGAR D. Porn, citizens of the United States, residing atPortland, in the county of Jay, State of Indiana, have invented a newand useful SPOLIGrIt IltGPTHg Machine, of which the following isaspecification.

The deviceforming the subject matter of this application is adapted tobe employed for mitering spokes.

One object of the present invention is to provide novel means wherebythe knife carrying frames may be shifted withrespect to each other thusto alter the amount of bevel at the hub engaged end of the spoke.

Another object of the invention isto provide means whereby the spokecarrying table may be shifted vertically thus to provide for a properbeveling of spokes which are to constitute a part of a dished wheel.

Another object of the invention is to provide novel means forreciprocating the cutting knives.

It is within the scope of the invention to improve generally and toenhance the utility of devices of that type to whlch the presentinvention appertains.

V1 ith the above and other objects in view which will. appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the in vention herein disclosed can be made within thescope of what is claimed without departing from the spirit of theinvention.

In the accompanying drawings i-Figure 1 shows the invention in sideelevation, one of the side plates of the supporting frame being removed;Fig. 2 is a side elevation, the view point in Fig. 2 being 90 degreesremote from the view point in Fig. 1, parts being broken away andportions of the gear train being omitted; Fig. 3 is atop plan of thespoke table; .Fig. 4 is a fragmental side elevation of the spoke table;Fig. 5 is a top plan of the cross head; Fig. 6 is a side elevation ofthe cross head; Fig. 7 is an end elevation of the cross head; Fig. 8 isa side elevation of one of the knife frames; Fig. 9 is a side elevationshowing a portion of one of the connecting bolts, whereby the knifeframes are movably assembled with the cross head; Fig. 10 is afragmental vertical section showing one of the adjustable gibs; Fig. 11is a top plan of the knife frame shown in Fig. 8; Fig. 12 is a top planof the spoke grip.

In carrying out the invention there is provided a frame of any desiredform, the same in the present instance including a box-like support 1,one side of which is closed by a removable plate 2, the plate beingdetached in Fig. 1.

Mounted upon the frame is a stub shaft 8 carrying a belt wheel 4 or thelike and a pinion 5. The pinion 5 meshes into a gear wheel 6 on a framesupported shaft 7. Splined to the shaft 7t0 slide longitudinally thereonis a sleeve 8, to one end of which is secured a, gear wheel 9, a gearwheel 10 being secured to the other end of the sleeve.

Thesleeve is moved longitudinally through the instrumentality of ashifting lever 11, operatively connected with the sleeve 8 as shown at12 in Fig. 2. The gear wheel 9 is adapted to mesh into a pinion 1 1fixed to a frame supported shaft 15. Journaled for rotation on the shaft15 is a pinion l6 adapted at times to mesh into the gear wheel 10. Thepinion 1G is adapted to be connected operatively with. the shaft 15through the instrumentality of a clutch 17 controlled by a shifting rod18which may be mounted to slide in a bearing 18 on the machine frame.The pinion 16 meshes into a relatively large gear wheel 19 fixed to ashaft 20 journaled in a bearing 21 onthe machine frame.

In operation, when the wheel 1 is rotated, motion will be transmitted tothe shaft 7 through the instrumentality of the pinion 5 and the gearwheel 6. If the pinion 14 is in mesh with the gear wheel 9 as shown inFig. 2, then motion will be transmitted to the shaft 15 and from theshaft 15 by way of the pinion l6 and the gear wheel 19 to with the shaft15 through the medium of the shifting rod 18, it being obvious that ateither speed, the machine may be stopped by manipulating the rod18 anduncoupling the pinion 16 from the shaft 15.

The foregoing description embodies but one of many devices which may beemployed for altering the speed of rotation of the wheel 19 and theshowing of the drawings in this regard is typical only.

A pair ofknives reciprocates vertically head'23 and is operativelyconnected with a wrist pin 56 on the gear wheel 19. I

It will now be understood that when the gear wheel 19 is rotated, avertical reciprocating movement will be imparted to the cross head 23through the instrumentality of the pitman 55, the speed of reciprocationof the cross head 23 vertically being capable of alteration by means ofthe change speed gearing hereinbefore' set forth.

Noting Fig. 5 wherein the cross head is shown in top'plan, it will beobserved that at one end of the cross head are located lugs '27 which,as shown in Fig. 6 are provided with T-shaped slots 28. In the other endof the cross head 23 are threaded openings 29.

A pair of knife-carrying frames are provided, each frame comprising apair of posts 30, a web 31 connecting the posts, and a top plate 32connecting the posts. Secured 1n any, desired manner to the webs 31 ofthe knife frames areknives 33. Tapered bolts 34 and 34 extend upwardlythrough the vposts 30 of the knife frames. The bolt-s 34 a at theirlower ends enter'the openings 29 in the cross head and form bearingsupon which the knife carrying frames are mounted to swing horizontallytoward and away from'each other. The bolts 34 are equipped at theirlower ends with'transverse heads 34 which are adjustable. in theT-shaped slots 28 of the lugs 27 of the cross head. A link 35 of a fixedlength connects the upper ends of the bolts 34, the upper ends of thebolts '34? united by an adjustable connection which may be in the formof a turnbuckle 36, comprising a sleeve and eye bolts, the eye boltsbeing engaged around the ends of the bolts 34*. Nuts 37 are threadedonto the upper ends of the bolts 34 and 34 The nuts 37 onthe bolts 34bear upon the l1nk 35,

and the nuts on the bolts 34 bear against the ends of the eye boltswhich constitute a part of the turnbuckle 36. It will now be understoodthat by loosening the nuts 37 on the bolts 34, the heads 34 of the bolts34 may be permitted to move in the T-shaped slots 28, for adjustment,thus varying the angle between the knives 33 and regulating the bevelimparted to the end of the spoke. The function of the turnbuckle 3G orits equivalent is to adjust the movable ends of the knife carryingframes toward and away from each other to regulate the bevel ashereinbefore set forth. In one end of the cross head 23 there is anopening 38 which serves to receive one end of a spoke supporting table(hereinafter described) when the cross head is reciprocatcd vertically.

Formed upon one side of the support 1 or attached thereto is a box-likecasing 39 in which is mounted a shaft 40, constituting a fulcrum for theintermediate portion of a table 41, one end of the table 41 protrudinglaterally, as shown in Fig. 1, and the other end of the table enteringbetween the knives 33. The table 41 includes a depending arm 42 enteringthe casing 39. The movement of the arm 42 with the shaft 40 as a fulcrumis controlled by means of a screw 43 threaded into the casing39.Projecting from the arm 42 is a threaded stud 44 passing outwardlythrough the casing 39 and mounted upon the stud 44 is a lock nut 44adaptedto bind against the outer face of the easing 39.

By means of the construction last above described, the position of thespoke support-.

ing table 41 with respect to the horizontal may be altered thus tosecure a proper beveling of a spoke which is to be used upon a dishedwheel.

Adjacent its inner end and in its upper face, the table 41 is equippedwith a recess 45. A screw 46 is mounted to rotate in the table 41 but isheld against longitudinal movement therein, the screw being rotatablethrough the medium of a band wheel 47. In the upper face of the table 41and at its inner end is fashioned a groove 48 in which is mounted toreciprocate a slide 49 held in place by a cover plate 50 united with thetable 41 through the medium of securing elements 51. At one end, theslide 49 is equipped with a stop finger 52 which serves to position theinner end of the spoke properly, the finger 52 being mounted toreciprocate in a slot 53 in the cover plate 50. The slide 49 is providedwith a depending lug 54 into which one end of the screw 46 is threaded.By manipulating the screw 46 through the medium of the hand wheel 47 theposition of the stop finger 52 may be adjusted, thereby to position theend of the spoke properly to be operated upon by the knives 33.

Secured to the table 41 is a spoke grip which ordinarily is constructedas follows, although the specific form of spoke grip shown may bedeparted from, without jeopardizing the utility of the invention.

The spoke grip embodies a base plate 101 superposed upon the table 41and held thereto by set screws 102. The base plate 101 includes atransverse head 103 having lugs 104 at its ends. In the lugs 104 isournaled a screw 105 equipped at one end with an operating handle 111.Dovetailed for sliding movement on the transverse head 103 are carriages106 which may be in the form of blocks. The screw 105 is right handthreaded into one carriage and is left hand threaded intothe other.Mounted upon the upper faces of the blocks or carriages 106 are spokeholding jaws 107, pivoted to the blocks or carriages as shown at 108.Upstanding from the blocks or carriages 106 are studs 109 which areadapted to move in elongated slots 110 formed in the jaws 107, thedetail last above mentioned permitting the jaws to co liperate properlywith a spoke, regardless of the taper of the spoke. By rotating thescrew 105, the jaws 107 may be moved toward and away from each other,and by adjusting the set screws 102, the base plate 101 and attendantparts may be adjusted longitudinally of the table 41.

At its upper end, the vertically reciproeating cross head 23 is providedupon opposite sides with downwardly slanting chip chutes 57 adapted todischarge, within the contour of the support 1, upon chip chutes 58mounted at the lower edges of openings 59 in the support and dischargingoutside of the support.

The operation of the structure has been dealt with hereinbeforestep-by-step, but briefly considered is as follows: The position of thespoke with respect to a horizontal plane may be adjusted by changing theposition of the table 11 through the instrumentality of the screw 43.The angle defined by the knives 33 with respect to each other, andconsequently the bevel, may be altered, by shifting the lower ends ofthe bolts 34? in the slots 28 of the cross head 23. lVhen the cross head23 is reci'procated through the medium of the pitman and the gear wheel19, the knives 33 as they descend will cut the desired bevel on thespoke, the chips being conducted away by means of the chip chutes 57 and58. A change in speed may be effected by such a mechanism as that shownin the lower portion of Fig. 2. The position of the end of the spokewhich is to be beveled may be regulated by altering the position of thestop finger 52 through the medium of the screw 46.

Having thus described the invention, what is claimed is I 1. In a deviceof the class described, a frame; a table pivoted to the frame andprovided with a depending arm; an adjustable connection between the armand the frame whereby the table may be tilted vertically; a pair ofcarriages mounted to move with respect to the table transverselythereof; means for moving the carriages toward and away from each other;cooperating jaws pivoted to the carriages for limited automaticadjustment parallel to the plane of the table; a pair of cutterscoiiperating with the jaws; and frame supported means for actuating thecutters.

2. In a device of the class described, a frame; a cross head mounted toreciprocate on the frame; a pair of knife holders pivoted to the crosshead and having bearings; uprights longitudinally adjustable in thebearings, the uprights having ends which engage the cross head slidablyto permit the holders to be swung toward and away from each other, andengage the cross head in clamping relation when the uprights are movedlongitudinally; a longitudinally adjustable connection uniting theuprights; and clamping devices on the uprights, the clamping devicesconstituting at once a means for retaining the connection and a meansfor moving the uprights longitudinally to cause the ends thereof to bindon the cross head.

3. In a device of the class described, a frame; a table mounted to moveupon the frame; means for holding the table in adjusted positions; awork supporting base plate on the table; an end stop mounted to move onthe table independently of the base plate; means for holding the stop inadjusted positions; carriages mounted to move on the base platetransversely of the base plate; pivotally supported automaticallyadjustable jaws mounted on the carriages; means for moving the carriagestoward and away from each other; cutters upheld by the frame and mountedto move adjacent the jaws; and means for operating the cutters.

In testimony that we claim the foregoing as our own, we have heretoaflixed our signatures in the presence of two witnesses.

ORLANDO O. KETRING. EDGAR D. POPE. Witnesses I M. HEARN, E. E. STEWART.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

